ASoC: fsl: eukrea: Remove the SND_SOC_IMX_SSI selection

SND_SOC_IMX_SSI was only used by i.MX non-DT platforms.

SND_SOC_EUKREA_TLV320 already selects the SND_SOC_FSL_SSI symbol,
which is enough.

Remove the unneeded SND_SOC_IMX_SSI selection.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201110203937.25684-5-festevam@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>